Régis Crelier
f721d52163
Allow pc_marker slot to hold a Code object or a new Bytecode object. Change-Id: If11c1df6dafc5b1cfcce6f0322c36d1d68e86df9 Reviewed-on: https://dart-review.googlesource.com/c/82526 Commit-Queue: Régis Crelier <regis@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
37 lines
1.3 KiB
C++
37 lines
1.3 KiB
C++
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#if !defined(DART_PRECOMPILED_RUNTIME)
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#include "vm/instructions.h"
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#include "vm/instructions_kbc.h"
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#include "vm/constants_kbc.h"
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#include "vm/native_entry.h"
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namespace dart {
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RawTypedData* KBCNativeCallPattern::GetNativeEntryDataAt(
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uword pc,
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const Bytecode& bytecode) {
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ASSERT(bytecode.ContainsInstructionAt(pc));
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const uword call_pc = pc - sizeof(KBCInstr);
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KBCInstr call_instr = KernelBytecode::At(call_pc);
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ASSERT(KernelBytecode::DecodeOpcode(call_instr) ==
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KernelBytecode::kNativeCall);
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intptr_t native_entry_data_pool_index = KernelBytecode::DecodeD(call_instr);
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const ObjectPool& obj_pool = ObjectPool::Handle(bytecode.object_pool());
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TypedData& native_entry_data = TypedData::Handle();
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native_entry_data ^= obj_pool.ObjectAt(native_entry_data_pool_index);
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// Native calls to recognized functions should never be patched.
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ASSERT(NativeEntryData(native_entry_data).kind() ==
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MethodRecognizer::kUnknown);
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return native_entry_data.raw();
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}
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} // namespace dart
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#endif // !defined(DART_PRECOMPILED_RUNTIME)
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